Might be worth trying Sky + Prestige who are on here touting things a lot. Also Adrian Flux as you're modified
Can vouch that Admiral/Elephant/Bell are brilliant with mods too, relatively cheap insurance anyway and they seem to know their stuff better than most mainstream providers.
If you find quotes on a comparison site always ring them up before you buy the quote as they usually assume you want all the add-ons and stuff with your insurance. I managed to save myself £200 a couple of months ago by just ringing up a company!
